Film-type patterned retarder
Encyclopedia
FPR is a technology promoted by LG
that is employed in its line of 3D televisions based on circular polarization. It shows left and right images through different patterns in a circular polarizer. Left/right polarized glasses
allow the left and right images to then be seen by the left and right eyes separately. Both images are combined in the brain and generate the 3D effect. The FPR technology uses the precise film which can distinguish the left and right images to show a different image for each eye. FPR 3D
tech is able to deliver a brighter screen with less cross talk, less ghosting, and no flickering.
Shutter glasses mostly eliminate "ghosting
" which is a problem with other 3D display technologies such as RealD 3D, or Dual projector setups. Moreover, unlike red/cyan colour filter 3D glasses
, LC shutter glasses are colour neutral, enabling 3D viewing in the full colour spectrum, but the technology has problems such as twinkle, vertigo, and uncomfortable glass Liquid crystal shutter glasses.
FPR 3D has been contrived to offer all solutions for the restraints that SG (Shutter Glasses) 3D has held back in 3D TV boom-up. Some obstacles such as eye-health-concern caused by flicker & cross-talk, and heavy and inconvenient 3D glasses run by rechargeable battery are there in 3D TV industry.
An early implementation of the technology was by Zalman, in their 'Trimon' computer monitors rather than TV, available around the end of 2007.
. FPR has reached the point where it can use film instead of glass, reducing the extra cost to a fourth of what it used to be, while the polarized glasses are five times cheaper than shutter glasses.http://www.fpdmarketresearch.com/blog/?p=42
LG
LG may refer to:*LG Corp., a South Korean electronics and petrochemicals conglomerate*LG Electronics, an affiliate of the South Korean LG Group which produces electronic products* Lawrence Graham, a London headquartered firm of business lawyers...
that is employed in its line of 3D televisions based on circular polarization. It shows left and right images through different patterns in a circular polarizer. Left/right polarized glasses
Polarized glasses
Polarized 3D glasses create the illusion of three-dimensional images by restricting the light that reaches each eye, an example of stereoscopy which exploits the polarization of light....
allow the left and right images to then be seen by the left and right eyes separately. Both images are combined in the brain and generate the 3D effect. The FPR technology uses the precise film which can distinguish the left and right images to show a different image for each eye. FPR 3D
3D television
A 3D television is a television set that employs techniques of 3D presentation, such as stereoscopic capture, multi-view capture, or 2D-plus-depth, and a 3D display – a special viewing device to project a television program into a realistic three-dimensional field.- History :In the late-1890's,...
tech is able to deliver a brighter screen with less cross talk, less ghosting, and no flickering.
History
SG (Shutter Glasses) 3D shows each left and right image alternately. When TV displays left eye image, the glasses block the signal of right eye image by closing the shutter of right glass lens. By contrast, FPR 3D shows the both images of left-eye and right-eye simultaneously, dividing the images into right-eye and left-eye by the correlation between FPR film on panel surface and polarizing glasses.Shutter glasses mostly eliminate "ghosting
Ghosting (television)
In television, a ghost is a replica of the transmitted image, offset in position, that is super-imposed on top of the main image on an analogue broadcast.-Common causes:Common causes of ghosts are:...
" which is a problem with other 3D display technologies such as RealD 3D, or Dual projector setups. Moreover, unlike red/cyan colour filter 3D glasses
Anaglyph image
Anaglyph images are used to provide a stereoscopic 3D effect, when viewed with glasses where the two lenses are different colors, such as red and cyan. Images are made up of two color layers, superimposed, but offset with respect to each other to produce a depth effect...
, LC shutter glasses are colour neutral, enabling 3D viewing in the full colour spectrum, but the technology has problems such as twinkle, vertigo, and uncomfortable glass Liquid crystal shutter glasses.
FPR 3D has been contrived to offer all solutions for the restraints that SG (Shutter Glasses) 3D has held back in 3D TV boom-up. Some obstacles such as eye-health-concern caused by flicker & cross-talk, and heavy and inconvenient 3D glasses run by rechargeable battery are there in 3D TV industry.
An early implementation of the technology was by Zalman, in their 'Trimon' computer monitors rather than TV, available around the end of 2007.
Overview
FPR (Film-type Patterned Retarder) improves on the cost of Patterned Retarder (PR) technology that needed to add an extra polarizing glasses substrate to the LCD TV panelPanel
- Art and comic books :*Panel painting, in art, either one element of a multi-element piece of art, such as a triptych, a piece of sequential art such as a graphic novel or comic strip, or a wooden panel used to paint a picture on...
. FPR has reached the point where it can use film instead of glass, reducing the extra cost to a fourth of what it used to be, while the polarized glasses are five times cheaper than shutter glasses.http://www.fpdmarketresearch.com/blog/?p=42
Advantages
- Flicker can be easily seen at SG due to the glasses’ on/off action & interference with other light sources. FPR does not suffer from increased flickering. Excessive flicker has been the source of complaints over eye fatigue and poor picture quality, as well as serious health concerns like photosensitive epilepsyEpilepsyEpilepsy is a common chronic neurological disorder characterized by seizures. These seizures are transient signs and/or symptoms of abnormal, excessive or hypersynchronous neuronal activity in the brain.About 50 million people worldwide have epilepsy, and nearly two out of every three new cases...
. The FPR Technology received a "Flicker Free" certification from Intertek and TUV, two of the most respected inspection and certification bodies in the world. http://www.tuvdotcom.com/ - FPR panels provide brighter 3D images. Nearly two times brighter than conventional 3D TVs, the FPR 3D TV produces brighter and clearer pictures with 3D Light Boost, a thin film covering the screen that enhances brightness in 3D.
- FPR glasses are "passive" and do not use electricity. This means that there is no battery to charge or replace, unlike SG technology. The SG technology can only use glasses which are connected with TV in sync so there are few glasses that viewers can use. In contrast, the FPR technology does not need this process so there is no limit to the amount of people who can watch the 3D TV at the same time. In addition, glasses can be shared between different 3D sources, including monitors and laptopLaptopA laptop, also called a notebook, is a personal computer for mobile use. A laptop integrates most of the typical components of a desktop computer, including a display, a keyboard, a pointing device and speakers into a single unit...
s. - FPR replaces glass with film, which costs only 1/4 as much.http://www.fpdmarketresearch.com/blog/?p=42 And the glasses are lighter.
- The glasses used with FPR are much cheaper than the equivalent SG glasses.
Disadvantages
- On an FPR display showing an 3D image both eyes do not share the same pixel. This avoids problems mentioned above in the advantages. With FPR the left and right eye each have their own pixels. But as a consequence the display needs twice the amount of pixels, compared to the amount needed for 2D resolution. For 3D HDTV a UHD display can be used. If the display has double the pixels in a chosen (imageheight or -width) direction the full resolution can be shown in 3D. If the display has only the simple Full HD amount of pixels than with FPR the resolution shown is halved in one direction.